For Schaller, Sperzel and Fender guitar tuning machines
This hard coated aluminum jig lets you drill an accurately located pin hole in the back of the peghead, for a left or right side tuning machine, using your hand drill. The Tuner Pin Locator keeps the drill bit perpendicular to the peghead for accuracy.
It will location:
- Schaller / Fender two pin (top row of three - outer two holes) #38 drill size
- Sperzel single pin ( top row of three - middle single silver rimmed hole) #38 drill size
- Schaller M6 two pin (bottom row of three - outer two holes) 3/32" or #42 drill size
- Schaller / Fender single pin (bottom row of three - middle single hole) #38 drill size
The Tuner Pin Locator fits a 3/8" dia. peghole, but will also work in a 10 millimeter dia. peghole by using the self centering cone washer.
Use a #38 drill bit (.101) for all holes except for the Schaller M6 two pin that requires a 3/32" or #42 drill bit (.093) and adjust the depth to 11/16".
This is measured from the outer bottom cutting edge of drill bit to its stopping point. Mark your drill bit with tape or use stop collar.
(6-in-line / measured from side edge of peghead)
Once the Tuner Pin Locator is lined up by using a straight edge, ruler or its built in center point, make sure the thumb screw is tightened against the cone washer securing the hard coated metal block to the peghead.